Answer:
15in2
Explanation:
The diagram shows part of a radio antenna.The plastic tube protects the radio antenna from bad weather.Dust particles carried by the wind rub against the plastic tube.After some time, the dust particles cause the tube to become positively charged.State the property of plastic that allows it to become electrostatically charged.
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Answer:
False
Explanation:
This statement is negates the photoelectric effect.
When an electron absorbs energy it jumps from a lower shell to a higher shell. When the electron releases energy it jumps from a higher shell to a lower shell.
The Kinetic energy of an ejected electron is
Where,
h = Planck's Constant
f = Frequency of incident photon
= Work function
So, this statement is false.
Answer:
frictional force causes an object to slow down
They are powered by fusion reactions